It is too early to know the details or render judgements but its not too early for each of us to think carefully about what we can do to try to prevent this from happening in our own homes. All firearms and ammunition should be locked up and stored separately. Beyond that key point it is also worth thinking about what type of secure storage is appropriate to our home situation. Keyed trigger or cable locks can certainly deter a young child if the key is not readily available. Combination storage safes or cabinets are more appropriate where teenagers or young adults can be present or to prevent criminal access. In some cases parents should consider removing firearms from the home altogether and storing them at a range or club. Safety education for both parents and kids is always critical.